Pumps, filters and equipment
Servicing a pool heat pump or chiller
Heat pumps and chillers sit idle for months, then are expected to work on the first cold or hot day. A service before the season avoids that surprise.

In Dubai, many pools use a heat pump in the cooler months and a chiller, or the same unit in reverse, in summer. Between seasons the unit may not run at all. Dust settles on the coil, condensate drains block with debris, insects nest in the casing, terminals loosen with heat cycles and settings are lost in power cuts. None of that shows until the unit is needed.
Equipment guides cover servicing and faults on the plant an existing pool already has.
A seasonal service covers the air side, the water side and the controls: cleaning the coil and checking the fan, clearing the condensate drain, checking water flow and connections for leaks, inspecting electrical terminals, and running the unit to confirm it reaches temperature and reports no faults.
The short version
Clean coils move more heat
Dust on the coil cuts output and makes the compressor work harder.
Clear condensate drainage
Blocked drains overflow into the unit base and around equipment.
Test before you need it
Faults found at a service are easier to fix than on the first cold evening.
What a service covers
Air side
Coil cleaning, fan and motor checks, and clearing anything blocking airflow around the unit.
Water side
Flow through the exchanger, the flow switch, unions and connections for leaks or corrosion.
Electrical and controls
Terminals, contactors, settings, sensors and a test run with any fault codes recorded.
When to book it
Before the heating season
For heat pumps, ahead of the first cooler weeks.
Before peak summer
For chillers, ahead of the hottest months.
After a heavy dust storm
Coils clogged with dust lose efficiency quickly.
Common questions
How often should a heat pump be serviced?
Typically before each season of use, and after dusty weather if the coil is visibly dirty.
Can I clean the coil myself?
Light dust can often be rinsed gently with the power off, following the manufacturer’s guidance. Fins bend easily.
Does servicing save energy?
A clean coil and correct flow generally let the unit reach temperature using less energy.
Related pool care guides
- Cleaning a salt chlorinator cellA related check on the same part of the plant.
- A salt chlorinator that is not producing chlorineA related check on the same part of the plant.
- Repairing or replacing a pool pumpA related choice about how the pool is looked after.
- When pool pH is too highAnother water problem with a related cause.
This guide sits under pool equipment repair. Browse all pool care guides. We look after pools at homes and commercial properties across Dubai.
Ask about your pool
Tell us how the pool is used and what equipment it has. We will suggest a routine that suits it.
Phone
+971 56 181 0106Talk through what the pool is doing and book a time for us to see it.
WhatsApp
Send a messageThe easiest way to send photographs of the pool and plant room.
Next step
Book a seasonal service
Tell us your unit model and when you want it running. We will schedule a service ahead of the season.