Omnia Mechanical Group

571 Timpson Place Bronx, NY 10455

Phone: 212-534-2500

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Signs of Impending Boiler Problems and Solutions to Prevent Heat and Hot Water Disasters

The heating season in New York City is from October 1 through May 31. During this season, landlords must keep their properties at proper minimum temperatures — 62° F to 68° F, depending on the time of day. The boiler is crucial in maintaining building temperatures, especially during the winter.

Building owners must remain aware of the signs of impending boiler problems and solutions to ensure their properties stay within specific temperatures for tenants. Discover warning signs of impending failures and how to prevent them.

Signs of Impending Boiler Problems and Solutions

Strange Noises

Boilers are relatively noisy devices. Depending on the size of the system, people may have difficulty hearing conversations when standing in a boiler room. Despite the natural noisiness of the appliance, though, some sounds are still strange, excessive, and unwelcome.

Unwanted noises may include droning, gurgling, humming, or whooshing. Droning is a continuous low-octave sound and typically stems from a faulty pump. Gurgling noises, like boiling water, signal trapped air in the system. Humming is a result of feeder water arriving at too high pressure. Finally, whooshing usually occurs when dust blocks a filter or an air intake pipe has a blockage.

Another common issue that can cause strange noises is boiler kettling — named after the whistling sound accompanying the problem. Kettling occurs when water in the boiler reaches a boiling point too quickly. The boiling causes steam and traps air in the system.

The primary cause of boiler kettling is limescale deposits in the system lines, slowing the flow and allowing excessive heating. Also, a faulty component may cause the appliance to heat improperly.

Noise is among the most apparent signs of impending boiler problems. If your boiler makes unusual sounds, call Calray Boiler to schedule an inspection.

Unusual Operations

Boilers are essential but dangerous equipment because they operate at high temperatures under pressurized conditions. Modern systems have several built-in safety features to reduce hazards like explosions. When something is not working correctly within the boiler, the system may act erratically, often due to preset safety features.

System safety features include automatic shutoffs. If your system keeps switching off randomly and without meeting temperature presets, something needs repair. If a safety feature trips, causing the shutoff, the problem may result from high boiler pressure. Contact an engineer immediately.

Other less dire situations include a faulty thermostat, trapped air, pipe debris, and sludge. While not as dangerous as high pressure, each issue resulting in poor boiler performance risks the system and a building’s heating capabilities.

Calray Boilers offers annual service contracts to ensure your boiler is never behind in its maintenance and inspections. A contract also makes your property a service priority in emergencies.

Low Boiler Pressure and Leaks

Common signs of boiler problems include low boiler pressure and leaks. Low pressure often causes cold radiators with no hot water. Diagnosing the problem is straightforward because most modern boilers have a display panel registering the pressure in the system. The correct pressure level depends on the make and model of the system but should be in the boiler manual.

Low pressure is often a result of one of two problems: system air or water leak. A bleeding radiator somewhere in the building can cause a pressure reduction. Sometimes maintenance staff will bleed a radiator intentionally to correct heating issues. If done as routine maintenance, the system should repressurize once the staff closes the radiator bleed valve.

Boiler water leaks can cause performance issues and property damage. A leak can stem from corroded pipes, excessive pressure, faulty components, or seal failures. You should always call a professional service like Calray Boilers to repair boiler leaks. Attempting boiler repairs without proper training can result in injury or further damage to the system.

Hot Water Without Heat

If a property has hot water but not heat, it can be a sign of impending boiler problems; however, it is more likely a sign of either air in the system or forgotten maintenance. A steady hot water supply suggests the boiler is working as it should. The likely culprit for cold radiators is trapped air in the pipes. All you need to do to resolve the problem is to bleed the radiators.

Bleeding a radiator is simple. First, using the radiator key, open the radiator valve, typically located on one of the upper sides of the unit. Turn the key counterclockwise. Allow the air to hiss out. Once the hissing stops and water drips out, close the valve. The boiler system may need re-pressurization depending on the number of radiators bled.

If the building uses a combi boiler — a system that allows independent operation of hot water heating and central heating — staff may have forgotten to turn on the central heating. Usually, a combi boiler displays which features are in use, making it easy to rectify the situation.

No Hot Water or Heat

When a system experiences impending boiler problems, built-in safety mechanisms intervene to prevent harm to the system and property. If your property has no heat or hot water, the boiler has probably shut down. Some shutdowns occur because of external issues, such as a disconnection from the gas, power, or water supply. Other shutdowns result from pressure issues that threaten the safety of tenants and staff.

To uncover the cause of a system shutdown, contact Calray Boilers. Do not attempt to repower the system without a thorough inspection. If a safety feature caused the disruption, repowering the appliance may be dangerous and ill-advised.


Many boiler problems and heating interruptions are avoidable. Routine maintenance and inspections help ensure the health of the system. Calray Boilers offers an annual service contract to ensure landlords can maintain a healthy, warm, and safe environment for their tenants. The service focuses on preventative maintenance and minor repairs to avoid significant repairs, heat interruptions, and issues later.

Calray Boilers: Signs of Impending Boiler Problems and Solutions

Don’t Risk Complaints This Heating Season

All property owners should be confident in their boilers. Contact Calray Boilers at 212-722-5506 to schedule a boiler inspection and discuss annual service contracts. Go into the heating season knowing your boiler is in good working order and avoid hot water and heat complaints in cold weather.

Our Privacy Policy

Omnia Mechanical Group(the “Company”) strives to ensure the highest standards for property listings and customer information privacy. Please review the following statement to learn about our company practices and policies. Please be aware that our Privacy Policy is subject to change at any time.

1. Purpose.

This Privacy Policy (“the Policy”) provides information on how the Company uses your personal information. By agreeing to the Policy, you agree to our collection and use of your personal information as described in the Policy. This Privacy Policy is effective for all new users of

2. Personal Information.

You can browse some areas of (“the Website”) without being a registered user. However, certain activities do require registration. (You consent to the transfer and storage of your information by registering with

3. Use of Information.

Our primary purpose in collecting personal information is to provide you with a safe and user-friendly experience. For example, the Company may use your personal information to:

  • Improve our services and the Website’s content and layout;
  • Provide the services and necessary customer support you request;
  • Resolve disputes, collect fees, and troubleshoot problems;
  • Track and record customer satisfaction with our services;
  • Protect the Company against error and fraud;
  • Inform you of special promotions and announcements;
  • Enforce our agreements, terms, conditions, and policies; and
  • As otherwise described to you at the time of collection.

We may occasionally ask you to complete optional surveys. These surveys are used to improve and customize your experience with

The Company always provides you the ability to opt-out of further communication such as promotions and surveys; see the Opt-Out section below.

The Company does not share any of your personal information with outside organizations, companies, individuals, etc. The only exception to this standard is if such a disclosure is reasonably necessary to respond to any and all legal processes.

4. Links to Other Sites.

The Website may have links to other websites that may collect personally identifiable information about you. The Company is not responsible for the privacy practices of the content of those linked websites.

5. Safety & Security Precautions.

The Website has strict security measures in place to protect you and your information from fraud. Once your information is provided to Omnia Mechanical Group, we strive to ensure the confidentiality of your identity and information.

6. Opt-Out.

The Company provides you with the opportunity to opt-out of receiving promotional and other non-essential, marketing-related communications from Omnia Mechanical Group. If you would like to opt-out of these select communications, please see any of the Company’s email communications and follow the directions indicated.

7. Account Protection.

Your password ensures the security of your account. When choosing a password, the Company suggests using various characters. It is highly recommended that you do not disclose your password to anyone. (If you do disclose your password or your personal information with others, you are responsible for all actions taken in the name of your account.) If the security of your password is compromised for any reason, please contact the Company immediately.

8. Accuracy of Information

The Company does not guarantee the accuracy of information for any and all of its properties on the Website, and is not responsible for any errors or misrepresentations (made by Renters, the Client, or otherwise).

9. Cookies

The Company may place a small cookie on your computer’s hard drive. This allows us to personalize your use on the Website. In order to maximize the functionality and usability of the Website, you must set your browser’s preferences to allow both permanent and temporary cookies.

10. Changing Your Personal Information.

Should your personal information change, please immediately update your information on the Website. This will ensure the accuracy of our records. The Company does retain personal information from closed accounts in order to comply with law and collect and disburse any fees owed.

11. Third Parties

This Privacy Policy addresses only the use of information we collect from you. Since does not control the privacy policies of third parties, you are subject to the privacy policies of those third parties. It is advisable that you consult with the management of third parties before you disclose your personal information to others.

12. General

We may amend this Privacy Policy at any time by posting the amended terms on the Website. All amended terms are immediately effective after they are initially posted on the Website.

13. Privacy Policy Questions & Concerns

Questions and/or concerns regarding the Policy should be emailed to the following email address: