I have a creda condenser model T622CW that worked but no heat.
1. I changed the 2 thermostats (high and low heat) on the back but still no heat.
2. Then I changed the heater element although the old one looked ok. Still no heat.
3. I traced the supply wires to the heater (light blue and brown) and they go down and into the centre of the machine.
4. Removed the left side panel (looking from the back) and the wires go to a microswitch that has a lever attached.
5. Below this lever is a plastic button protruding from the condenser unit (white plastic) and the button was up. I pushed it down which activated the microswitch.
6. I made sure the unit was safe and connected back to the mains and switched on. Eureka! HEAT!
7. Outcome: The two thermostats were definitely blown so that is the first move you make when no heat. But the 2nd move, provided the heater element is intact, is to look for that microswitch. I hope this helps a lot of people because when I searched for help I found it very limited.
Friglett
October 2008