It is a cold morning in Puyallup. The heat pump is running, but the house still feels chilly. You turn up the thermostat, and nothing seems to change. Sometimes this is normal heat pump behavior. Other times it points to a real problem. This guide helps you tell the two apart and know when to call for heat pump service in Puyallup, WA.
How Heat Pumps Handle Cold Weather
A heat pump does not burn fuel to make heat. It pulls heat from the outdoor air and moves it inside. Even cold air holds some heat. As the temperature drops, there is less heat to grab. The heat pump has to run longer to keep up. Want the full picture? Read our guide on how a heat pump works.
Many homes also have backup heat. That might be electric heat strips or a gas furnace in a hybrid system. Backup heat turns on when the heat pump needs help.
What Normal Looks Like on a Cold Day
Some cold weather habits worry homeowners, but they are signs the system is working.
Long Run Times
On a cold day, a heat pump may run for long stretches. That is how it keeps up. Short breaks between cycles are normal too.
Defrost Cycles
Frost builds on the outdoor coil in cold, damp weather. The system switches to defrost mode to melt it. The outdoor fan stops, and you may see steam. After a few minutes, heating starts again.
Warm Air, Not Hot Air
Heat pump air often feels warm, not hot. It is cooler than air from a gas furnace. Your rooms should still reach the set temperature over time.
Common Reasons a Heat Pump Stops Heating
When the house will not warm up at all, something else is going on. These are the causes we look for first.
A Dirty Air Filter
A clogged filter chokes airflow. Less air moves across the coil, so less heat reaches your rooms. This is the easiest problem to fix.
Ice That Will Not Melt
A light frost is fine. A thick block of ice that stays for hours is not. A failed defrost sensor or control board can stop the defrost cycle.
Low Refrigerant
Refrigerant carries heat into your home. A leak leaves the system short, and heat output drops. Learn more about heat pump problems caused by low refrigerant.
A Weak Capacitor
The capacitor gives the motors a jolt to start. A weak one can leave the outdoor unit humming but not running. Here are the signs of a weak or dying heat pump capacitor.
Thermostat Settings
Make sure the thermostat is set to heat, not cool or auto. A fan set to on can blow cool air between cycles. A dead battery can also stop the signal.
A Blocked Outdoor Unit
Leaves, snow, and plants can block airflow around the outdoor unit. The system cannot pull in enough air to work well.
A Stuck Reversing Valve
This valve switches the system between heating and cooling. If it sticks, the heat pump may blow cool air in heat mode.
An Older or Undersized System
Older heat pumps lose a lot of output during cold snaps. Newer models are built to heat in colder air. Find out if cold climate heat pumps are right for Western Washington homes.
Quick Checks Before You Call
Try these simple steps first. They solve some cold weather problems.
- Set the thermostat to heat and a few degrees above room temperature.
- Replace the air filter if it looks gray or dusty.
- Check the breakers for the indoor and outdoor units.
- Clear leaves and snow from around the outdoor unit. Never chip ice off the coil.
- Wait through a defrost cycle before you assume something failed.
When to Call for Heat Pump Service in Puyallup
Call a technician if the heat pump blows cool air in heat mode for more than a few minutes. Ice that stays on the coil is another reason to call. So are loud buzzing, clicking, or a breaker that keeps tripping. Backup heat that runs all the time also points to a problem. Our heat pump repair team can find the cause and fix it.
Prevent Cold Weather Heat Pump Problems
A yearly tune-up in fall gets your system ready for winter. Our heat pump maintenance visit checks refrigerant, coils, and electrical parts. If your heat pump is older and struggles every winter, a new one may be the better fix. Our heat pump installation team can help you compare options.
Need heat pump service in Puyallup, WA? Call Taylor at 253-208-5315.
