When your heater starts up, you will hear a hissing noise. This is a normal part of your radiator’s operation. However, if you hear a constant hissing noise, it means that your air valve is not closing. Your air valve should close during the heating cycle to trap steam inside the radiator. This is what causes the unit to heat up. Clean the valve with vinegar. If this does not correct the issue, it’s time to call your HVAC contractor.
Air Valve Makes Strange Noises
As we mentioned, it is normal to hear hissing noises coming from the air valve on your radiator. However, if your air valve is making gurgling noises, it may be a sign of an issue either with the air valve or with the radiator itself. This could indicate that the supply valve is partially closed, the supply valve is broken or corroded, or the radiator is sloped too much or too little. It could also indicate that the air valve is not installed correctly or that it is blocked up with debris or mineral deposits.
Radiator Does not Heat Up
If your radiator is not getting hot to the touch, it means that the air valve is retaining cold air and not letting in steam.
Air Valve Leaking Water
A leaking air valve is indicative of mineral deposits or debris obstructing the valve. Try cleaning it out with vinegar. If that does not work, it is time to call Air On Time.
If you experience any problems with your heater, call Air On Time AC at 281.883.9972. We provide heating and air conditioning in Conroe and the surrounding areas.