Since the ahu is the central unit that moves the air throughout the ductwork it is important to make sure nothing obstructs the airflow through the air handler such as dirty or clogged air filters a regular air filter maintenance schedule will help you maintain good airflow through the duct system.
Heat pump air handler not working.
Here we give a sequence of things to check if the a c is just not working.
Under normal conditions your heat pump periodically switches to air conditioning mode for a few minutes which heats up the outdoor coils enough to melt any frost and light ice that has accumulated.
If the unit is not defrosting ice can build up in a hurry.
It will also need to be replaced by a technician.
If your heat pump is connected to a power switch you will find it either on the wall near the unit or inside the air handler cabinet.
Indoor air handler or blower unit for a c or heat pump or furnace systems.
Maintenance and upkeep can be a major hassle with air conditioning units.
Ac units need ductwork to operate and if your home does not already have it installing ductwork is a major and expensive renovation.
If the coil is frozen shut off the air conditioning immediately.
Clear duct system and good airflow common air handler problems.
Even if it s not a heat pump some equipment still use belt driven.
As the name suggests the reversing valve allows the heat pump to work as both a heater and an air conditioner by reversing the direction of the refrigerant.
Then check out our page heat pump iced up in summer.
The air conditioning system indoor air handler units blower units or ahu s also called fan coil units including the air conditioner blower fan the indoor cooling coil or evaporator coil air conditioning system filters and the.
Heat pump not heating.
Heat pumps also work extremely efficiently because they simply transfer heat rather than burn fuel to create it.
Checking these simple items switches and controls including some you may not know about overflow pan switch for example may get your system running without a costly service call.
If the fan isn t working that can cause the coil to freeze.
If the coil froze the fan could be working but the air wont go through the ice until it melts.
You should also check return grills for blockages that could keep air from circulating freely in the system.
If the heat pump turns on when you want cool air but not for heat this is likely the cause.
How to inspect repair the indoor components of air conditioners and heat pumps.
The air handler might not be working because of a blown fuse or open circuit breaker.
Reset the circuit breaker or replace the burned out fuse.
Note that working inside the air handler cabinet of a heat pump and working with electrical parts can be dangerous so if you feel out of your element it s always after to call a heating repair technician.