How to Diagnose Domestic Heat Pump Problems

Various problems can happen with your heat pump during a heating season. In many cases, these problems are easy enough to diagnose and fix yourself at home. If all the system components are in place like they should be and you are not noticing improvements with your heating system, this could be because of a technical issue and will require the help of a professional. However, below are some common problems you might experience.

Fuses, Circuit Breaker & Thermostat

These three are the most obvious, first choice in what to look for to diagnose the problem. You will want to test the settings on your thermostat. Make sure that it is set to “heat” and not to “Air Conditioner” or “Cold”. If you find it on anything but heat, just adjust it appropriately and this should fix the problem. If that did not solve the problem, you will want to check your circuit breaker or fuses. This is often the reason for your heating system not functioning properly. This is because they are your heating systems electricity source.

Noisy Pump

Your heat pump typically runs quiet so if you are hearing any noise coming from it, this could be a sign of an issue. Noises may be heard from the pump itself or from the duct work. Either way, check for what’s causing it. Noise from your heat pump could be a sign of something small like loose bolts, nuts or screws. The noise could also be coming from a belt that has come loose. Check all of these things to make certain. If you continue to hear noises, it’s time to call a technician.

No Heat

Another sign that a problem might be happening with your system is if no heat is coming out of your vents. Not having enough heat coming from your vents could be various things like bad thermostat, no power or an igniter that has gone bad. You will want to check the power supply first to make certain that your pump is receiving adequate power. If you find there is not any power getting to your heat pump, you can reset the power supply. Next, you will want to check the igniter. Many heat pumps have lights on the pump which lets you know if the igniter is properly operating. If you are still experiencing no heat, check the thermostat and have replaced. This is usually when you will need to get a professional in to take a look at things.


This could indicate several underlying problems; however, the most common is usually a dirty air filter. If the filter becomes clogged it can result in a frosted heat pump which will ultimately lead to freezing. Be sure to check your air filter and change all of the filters regularly.

Maintaining your heat pump is important. Little problems that are not handled early can result in a more expensive bigger job like compressor problems later on. Since the maintenance of a heat pump can be a bit more technical than your average heating system, a technician should be called when it malfunctions. Your job, however, is to keep it free of debris and dirt by keeping a clean filter in it and eliminating any obstacles that can block air flow. Outdoor heat pump maintenance is important as well.

Keep updated on your components, equipment and  Grundfos Sololift from are another thing to consider as well.

Leave a Reply

Your email address will not be published. Required fields are marked *