Question 1

My system is not working at all! What should I do?

Accepted Answer

Before calling technical service, check if you have electricity (no partial power outage), if the system is on the correct mode, if the desired temperature is reached, if a thermostat program is active, if circuit breakers are tripped (for the heat pump/AC and the furnace/air handler), if there's an error code on the thermostat, and if the system filter needs replacement. Then, stop the system, turn off circuit breakers, remove thermostat batteries for 15 minutes, check and replace the filter, ensure the condenser is clear, and restart the system. For heating, if temperatures allow, increase the heat by one degree. If the heat pump doesn't start after 5 minutes or if the outside temperature is below -12°C, select the heating mode.

Question 2

My central heat pump, up to what temperature does it work in winter?

Accepted Answer

Most heat pumps work down to about -12°C. Below this temperature, a mechanical or electronic setting switches the heating demand to the primary heating unit (furnace or air handler).

Question 3

I'm going away for a long period, what do you recommend?

Accepted Answer

If you will be away for more than 48 hours, turn off the heat pump and use only the primary heating unit (furnace or air handler) in auxiliary heating mode. Inspect your outdoor condenser visually upon your return before using it.

Question 4

What is a condenser?

Accepted Answer

An outdoor unit that includes a compressor.

Question 5

What is an evaporator?

Accepted Answer

An indoor unit, often in a ventilation cabinet, that allows for heat exchange in your home.

Question 6

What is a coil?

Accepted Answer

A silver radiator full of fins located on the condenser and evaporator, responsible for heat exchange.

Question 7

What is a heat pump?

Accepted Answer

A device that can both heat and cool.

Question 8

What is an air conditioner?

Accepted Answer

A device used only for cooling.

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