DIY Explore
Central heating unit troubleshooting

Central heating unit troubleshooting


1. When the central heating unit fails to start check the thermostat first. Make sure the temperature is set correctly, set it higher than the temperature in the room.

2. Check the furnace to be on. Verify if the circuit breakers inside the electrical panel that controls the outside heat pump are on. Reset them once if they were on.

3. If the heater uses gas verify the gas valve at the gas meter near the gas tank. You can be out of gas in which case you will need a refill.

4. Check the air filter inside the air handler. See it is filled with dirt and debris and clean or even replace it if necessary. Only wash it if it is a reusable filter and let it dry before placing it back. Otherwise buy a new filter to replace the old one completely.

5. If the air blown by the vents is not warm check the return air grilles on the walls. Make sure the vents are open and that there is no object in the way of the air flow such as furniture or drapes.

6. If the fan is set to run not-stop then change the setting from the thermostat to “on” instead of “auto” to run in cycles.

7. A rattling noise made by the furnace means you need to turn it off and call a professional.

Tag: air filter problems, Central heating probelms, Central heating troubleshooting, central heating unit, circuit breaker, damaged furnace, damaged thermostat, furnace, gas valve, rattling noise, thermostat

Read more from Heating

Heating, Learn to close your home gas lineLearn to close your home gas line

In times when you will be gone for a longer period, such as a vacation, you will need to close the gas line from your house, as a safety precaution. You may find out that knowing how to close the ...
Heating, How to install one zone radiant floor heating  How to install one zone radiant floor heating

If you need a very good system to heat your house, or your commercial area, you will need to consider radiant floor heating system. This kind of system is very quit and efficient and it works usin ...
Heating, Learn to fix a ceramic tower heaterLearn to fix a ceramic tower heater

A ceramic tower heater uses ceramic to make heat. Its shape allows it to fit in the corner of a room. When you see that the heat efficiency drops or when the device doesn’t turn on, it means somet ...
Heating, Advantages and disadvantages for the most important heating systemsAdvantages and disadvantages for the most important heating systems

Since the beginning, the heating methods represented a problem for people. Starting from burned wood, methods evaluated and nowadays, we have a lot of systems to choose from. First, you will have ...

DIY Explore