Trouble Shooting Tips; Troubleshooting & Tips - AEG WSP 600 HF Gebrauchs- Und Montageanweisung

For the User and the Fitter

1.6 Trouble Shooting Tips

AEG high line storage heaters are equipped with a continuous running charge control and a
charge safety non-resetting limit switch. If the charge control does not switch off the elements
under normal charging conditions, the non-resetting safety limit switches off the power supply
to the elements. Problems in this category must only be repaired by a qualified installer
(see Chapter "Important Instructions", 2.2.1).
If the heater does not work correctly, the following checks should be undertaken:
1. Heater does not store heat
Check the circuit breakers and relays.
Switch on the Central Charge Control and measure the control voltage on terminals A1/Z1. A
defective central charge control can lead to continuous voltage on the control resistance, causing
it to heat up so much, that the heater is always switched off.
Check whether the charge control or non-resetting safety control has switched off. The safety
control is reactivated by pushing in the activating knob. Possible causes of the heater switching off
are:
– defective charge control thermostat
– prohibited covering of the heater causing hotspots
2. Heater always goes on full charge
Charge control defect? Heaters that are controlled by a central charge control should be checked
to see that the control sensor is sitting correctly in the control resistance. Check that the central
charge control is working and providing voltage to the control resistance. Check the control
resistance also.
At the same time, check that the sensor bulb sits correctly in its sleeve.
3. Heater does not give out enough heat
Heater sized too small. Fan or room temperature control is defective.
The central charge control may also have to be adjusted higher. The special instructions for the
respective charge control are to be adhered to.
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