Maintenance; Winterizing - Hayward Spa Heaters Owner's Manual

Maintenance

Dirt can accumulate on the evaporator. You can easily remove it by using
a non-pressured water spray without damaging the small aluminum fins.
The cleaning of the plastic cabinet can be done with the help of a brush and soap.

Winterizing

First, you must turn the breaker off. The unit must be drained of all its water.
You will need to disconnect the In and OUT water connections. Then the unit
must be tilted or blown out with air until all water is out.
The next step is to reconnect your In and OUT water connections that will
have previously been drained.
It is recommended to cover the heat pump to prevent snow from getting
inside. A protective winter cover is also offered by your retailer.
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OWnER'S MAnUAL