No Cooling On 230V AC
1. Check the supply line voltage with meter.
(See Figure 5-4)
2. Check main switch.
3. Check heating element.
4. Check cable connections.
5. Check thermostat (a continuity meter may be used
for testing.
NOTE: Check country specific voltage.
Poor Cooling On 230V AC
1. Check supply line voltage. Low line voltage has a
negative effect on cooling performance.
NOTE: Hotels and recreational vehicles will be more
prone to voltage drops.
NOTE: Check country specific voltage.
2. If voltage is low, recommend the customer use gas
instead.
3. Check that thermostat capillary tube is correctly
positioned. Insertion length is approximately 3-15/16"
(10cm). (See Figure 5-5)
No Cooling On 12V DC
1. Check voltage at terminal with meter when 12V DC
switch is activated. (See Figure 5-6)
2. Check 12V DC switch.
3. Check heating element.
4. Check cable connections.
5. Check cable cross section and cable length if there is
a voltage drop.
Recommended cross sections:
2
2.5mm
< 4m length
< _
2
4.0mm
4m - 6m length
6.0mm
2
> 6m length
5-3
Troubleshooting
Figure 5-4.
Figure 5-5.
Figure 5-6.