Welcome to Just Answer!. There are several factors... Air conditioners are not designed to operate when it is cooler than 22C outside.... they tend to run the cold coil too cold in those cases, and freeze the coil... ice builds up on the coil blocking the air flow. This a common problem seen when a house is warm inside and it is cooler than 22 or 23C outside... the coil begins to ice, then air flow is blocked, the room then does not cool... so the compressor keeps running and ices the coil.If it is warmer than 72F outside and the unit ices, the cause is a dirty air filter, or restricted air ducting if you have a ducted system, or the unit is very slightly low on refrigerant.If you give me the brand and model number of the heat pump... and tell me if it has duct work connected to it or not I can be a bit more specific with advice.
I will hold the question open on this issue with no time limit as long as you keep rating my remarks *positively.Thanks!Phil
The heat pump is a Bryant. I don't know the model no.. It is connected to duct work. This is happening when the air temperature is above 22 degrees.
The unit is about 6 years old. Should I get someone to come and look at it?
I will have to get a thermometer in order to do this procedure. I don't own one. Also, how do I know where the return air grill is? Margie
Thanks Phil, I have no idea where this return air grill is. There is a grill in my hallway but I'm sure it doesn't have a fan in it. Margie
Oh!! then that register is probably the return air register. When I get the thermometer I'll let you know what I find out. I do notice that the air coming from the register in my bedroom which is the furthest away from the furnace, does not feel as cold and does not blow out as strong as in the livingroom which would be closest to the furnace. Margie