I finally got to the the bottom of the Isotherm fridge temperature not regulating properly on Halo.
I discovered, with the help of Sean on the phone from Fridgetech, that the thermostat was the wrong type.
A previous owner of Halo must have replaced it at some stage with a model with a sensor which needs to be in contact with the refrigeration plates. It should have a thermostat which measures air temperature. Sean quickly sent me the right one which I installed and the fridge is now working perfectly.
The fridge now fluctuates around a temperature of +5°C and doesn’t freeze half the contents. Power usage is much reduced as well. We’re happy chappies!
Excerpt from the Frigoboat installation manual
Temperature Sensor Probe Mounting
The temperature sensor probe is mounted in the refrigerator or freezer cabinet so that it senses the average air temperature. It does not attach to the evaporator. It is best mounted at mid-height, on a wall or divider that does not have any part of the evaporator mounted on it, and insulated from the wall to ensure that it senses air temperature only.
Isotherm 41L Top Loading Fridge/Freezer Specifications:
| Type | BI 41 DUAL |
| Operation | Fridge/Freezer |
| Volume (l) | 41 |
| Dimensions H x W x D (mm) | W 342 x H 612 x D 500 |
| Power consumption (W/24h) | 270 |
| Weight (kg) | 19 |
| Operation temperature ( degreesC) | +10 to -10 |
The old thermostat:
FRIDGETECH MARINE & OUTDOORS
34 Tarndale Grove, Rosedale, Albany 0632, New Zealand.
www.fridgetech.co.nz
Halo Log Book 