Coolmatic HDC 190

Call Coast to Coast RV, for spares mailed out, on 07 3216-6580.... Regards, Ranger

Andy,
The Resistor in that wire can be obtained from ANY electronics store, like Dick Smith and have terminals soldered on each end. They are obtainable from WAECO on 1800 121212 also. The electronics shop just needs to see the colour of the bands on the old resistor to know what size it is. They are normally 1500 (whatever they measure resistors in)

In the interim if you are still having problems just remove the resistor section all together and the fridge will run properly, but will only draw about half the normal amps. It will not run fast enough to cool properly in very hot conditions, but would be still OK for cooler temps.

I have found that a good fix to prevent this resistor wire from breaking is to place a piece of plastic cable tie along the length of resistor wire and then use some more shrink wrap to hold it in place. The wire breaks due to fatugue but the plastic cable prevents it moving and we haven't broken one since using this method. We broke several before fixing it this way.

While you are at it, where the group of wires go into piece of aluminuim channel on the base of fridge, this controls the voltage to inside light, they tend to fatigue as well. When I replaced my last one, I filled the channel up with silicon and this prevents virbration where wires go into small black plastic block, and they haven't broken since.

Brian

Thanks Guys

We had to drive to Rockhapton this morning so I called in at the local Waeco/Engel/Trailblazer etc repair guy/agent.

From my point of view, an interesting discussion which sort of put together some of what I have read on the forum & discussed with other BT Owners, apologies to some who will find this old hat.

The short blue connection that plugs into the lower terminal block outlet, as supplied by Waeco, is a 1500 ohm resistor. According to Danfoss, the compressor manufacturers, the compressor speed is controlled by this resistor viz

Resistor (ohms) Compressor Motor Speed (rpm)
0 2,000
277 2,500
692 3,000
1523 3,500

The service guy said that when he replaced these resistors he used 270 ohm resistors to keep the power consumption down. This would seem to imply the point of time consumption rather than the power consumption per cycle on (my) assumption that Newton's first law applies.

Now I have another question: Has anyone played around changing the resistance & if so what were the results?

Andy

Assuming the information on this page:

www.seafrost.com/skuttlebut.htm#q

is correct the answer to my question is in the first few paragraphs.

Andy