AC/DC frig stopped working

[Donnie Durbin]

I had my engine replaced and now my frig wont work. 1990 250 Sea Ray Weekender.

 

[Texasmark]

Re: AC/DC frig stopped working

Either whomever replaced your engine accidentally damaged an electrical connection to the box, failed to reinstall a wire to it, or the new installation is not charging.

Engine starting and instrumentation should tell you that the engine electrical system is functional. Electrical devices and lighting in the boat should tell you that the power distribution is working.

Seems the next step is to trace the wiring from the ref back to the power panel and see that it is intact and that the fuse supplying the ref is intact and that it's contacts are clean and shiny. A voltmeter measuring the voltage to the ref would certainly be helpful.

Otherwise your ref may have just failed you....bad ac/dc switch, compressor crapped out....those things happen especially when something gets moved around and changing out an inboard installed engine is quite a change.

HTH,

Mark

 

[Donnie Durbin]

Re: AC/DC frig stopped working

I have AC current. Should it work on AC if DC is disabled somewhere?
Everything else on the boat works AC and DC

 

[sasto]

Re: AC/DC frig stopped working

I had one that quit working from sitting for awhile, Donnie. I pulled her off the boat for replacement. My friend accidently placed it on it's side. We plugged it in, the compressor came on and made an awful sound. I stood it upright and the comp. quit. I layed her back on it's side, comp. worked again. I left it there for about an hour. Stood it back up on it's bottom and she has been working for a year now.

I was talking to the local handyman and he told me he does this alot with fridges that quit working after an extended period of no use. Something to do with lubricating valves. I have no idea, really, but we did repair this one by accident.

I'm just throwing this out there to you, hope you find your problem, those things can be expensive.

Good Luck!

 

[seabob4]

Re: AC/DC frig stopped working

Seeing as engine electricals and boat electricals are entirely separate save for a common DC ground, I'd say coincedence...

 

[rbh]

Re: AC/DC frig stopped working

The fridge on your boat should be a 2 way fridge, 12vdc, 110AC, as was said check the fridge on AC if it works check the fuse pannel under the helm ???? for 12 VDC it should be labeled either cuddy or fridge circuit.

(odds are there is a disconected wire or two back at the batteries)

 

[Donnie Durbin]

Re: AC/DC frig stopped working

All circuits are good AC and DC.
The green light in side the frig by off/on switch will not light. The manual says the frig inverter has circuit protection and to reverse DC conections. ??

 

[rbh]

Re: AC/DC frig stopped working

All circuits are good AC and DC.
The green light in side the frig by off/on switch will not light. The manual says the frig inverter has circuit protection and to reverse DC conections. ??

sounds like when the "GUY" hooked your batteries back up he reversed the wires +-, thats not good, re check.

 

[Donnie Durbin]

Re: AC/DC frig stopped working

Battery conections OK

 

[Fireman431]

Re: AC/DC frig stopped working

Here is a trouble shooting guide for your fridge:

1) Turn power on and turn thermostat to "7" position (Go to #2)

2) Is the compressor running? (put your hand on top to feel slight vibration to be sure). If Yes-Go to #14. If No-Go to #3

3) Is the DC Breaker is in the "on" position & optional fuse is good?
If Yes-Go to #5 If No-Go to #4

4) Replace fuse if bad or turn breaker "on". Does fuse or breaker blow?
If Yes-Go to #6 If No-Go to #5

5) Check voltage at the refrigerator "+" & "-" terminals on the black module. Is it over 12 VDC? If Yes-Go to #7 If No-Go to #6 - (Go to 17 on AC/DC models)

6) Check batteries, wiring and connections to the refrigerator for fault, corrosion, proper wire sizing and correct the problem. Go back to #1

7) Put a jumper wire between terminals "C" & "T". Is the compressor running now? If Yes-Go to #11 If no-Go to #8

8) Disconnect power. Remove electronic module (philips screw beside terminal designation label will require removal). Disconnect the plug. Measure resistance (ohms) between each of the three compressor terminal pins. Is the measured resistance APPROXIMATELY the same?
If Yes-Go to #9 If No-Go to #10

9) Replace Electronic Module. Go back to #1

10) Have compressor replaced by qualified appliance technician who has the ability to evacuate and recharge the system. This is seldom necessary so please be sure and if possible contact manufacturer for further instruction beforehand.

11) Check wiring to thermostat with ohm meter to ensure there is continuity. (No broken or damaged wires or connectors). Is the wiring okay?
If Yes-Go to #13 If No-Go to #12

12) Disconnect power. Repair or replace wiring as necessary. Go back to #1

13) Replace thermostat. Go back to #1

14) Is the fan running? If Yes-Go to #16 If No-Go to #19

15) Provide extra ventilation (ie. hatch open, Lazerette open - where air can escape). After an hour is it refrigerating?
If Yes-Go to #16 If No-Go to #19

16) Maintain that adequate ventilation has been provided. Add ventilation as required.

17) Have a qualified appliance technician determine if there is a refrigerant leak or a compressor with a mechanical problem.

18) Check voltage at "+" and "F" terminals. Is there 12 VDC (or 24 VDC)?
If Yes-Go to #19 If No-Go to #5

19) Replace fan.


From 20 to 27 Applies to AC/DC Modles Only!

20) Switch DC breaker off and AC breaker on. Does the refrigerator run?
If Yes-Go to #18 If No-Go to #19

21) Turn DC breaker on and check DC voltage on Terminal Block located on side of grey AC power supply. Is it above 12 VDC (or 24VDC)?
If Yes-Go to #24 If No-Go to #6

22) Check fuse on grey AC power supply (4 amp 110V and 2 amp 220V). Is the fuse good? If Yes-Go to #22 If No-Go to #20

23) Remove power supply and determine if there are any indications of a short circuit. If no, replace fuse. Does fuse blow again?
If Yes-Go to #24 If No-Go to #21

24) Check DC voltage output of power supply at black module terminals "+" & "-". Is it above 12 VDC (or 24 VDC)? If Yes-Go to #18 If No-Go to #24

25) Is 110V (or 220V) available at the AC plug?
If Yes-Go to #21 If No-Go to #23

26) Check plug, wiring, breaker, shore power or genset for damage or fault. Repair or replace as required. Go to #17

27) Replace grey AC power supply.


I hope this helps. If not, I'm sure there are a bunch of vendors that will be willing to sell you a new fridge.

If it is the power module, let me know. i'll send you the link of where I got mine (if it's not available here on iboats). 3 days for shipping and it was here.

You might want this as well...it's the wiring diagram for the Power Module.

 

[Donnie Durbin]

Re: AC/DC frig stopped working

Thanks for the Guide

 

[rbh]

Re: AC/DC frig stopped working

Two thumbs up to fireman 431 for the chart!!!!!!


But if the fridge worked before the engine work, odds are it is a wireing issue.

I work on the KISS principle- Keep it simple stupid.
This being said coincidence of the issue happening after the engine being re and re'ed tends to be a power issue not fridge.


(YUP, sticken neck out!!!)

 

[sasto]

Re: AC/DC frig stopped working

Two thumbs up to fireman 431 for the chart!!!!!!

I agree. I copied this for future reference. As you can see from my post I know nothing about fridges!

 

[Donnie Durbin]

Re: AC/DC frig stopped working

I found that the LED on the thermostat switch circuit board was coroded into. Soldered jumper and took out LED. Will let you know how it turns out.

 

[Donnie Durbin]

Re: AC/DC frig stopped working

That was it! Frig working!!

 

[oops!]

Re: AC/DC frig stopped working

I was talking to the local handyman and he told me he does this alot with fridges that quit working after an extended period of no use. Something to do with lubricating valves. I have no idea, really, but we did repair this one by accident.

Good Luck!

dont do this and start the compressor right after....let the fridge sit for 1 hour if you lay it down on its side or you will blow the compressor.

take the fridge out. usually 4 screws and it slides out.
test to see if there is power going to the fridge.....
if yes....

by pass the thermostat by jumping the connection and see if it starts....if yes...replace thermostat....if no......you have a compressor problem.

 

[oops!]

Re: AC/DC frig stopped working

sorry fireman......i didnt see your post...scrolled too fast.

good post bud