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Inside unit comes on but compressor do not com on timer light blink's twice

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Chech compressor relay

Posted on Aug 20, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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1 Answer

Error code timer light blinks twice

Depending on the model, this usually means "Serial signal (reverse) error at start up" which means that the indoor unit is not receiving a response from the outdoor unit when it tries to "talk" to it. It can be several causes but In my experience, it is usually the outdoor controller board. Again, depending on the model, there can be several boards in the outdoor unit any or all of which could be causing the fault as well as a faulty fan motor or compressor. The bottom line is that you are going to need a tech to take a look at it to diagnose properly.

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Don't understand outdoor self diagnosis code

This sounds like a fault with the inverter or the compressor motor itself,

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Fujitsu AST12LSACW - The green timer light is blinking on the indoor unit. The unit is in cooling mode but the compressor dosent come on and only the indoor fan operates. There is power to the outdoor unit...

Compressor contactor relay struck or relay not activated. Remove L1 and L2 wires and jumper with L1 with T1, L2 with T2 and check now. Be careful. It's only checking. When compressor starts, switch off and replace contactor relay.

Jan 27, 2011 | Refrigerators

1 Answer

The light stays on for a long time although it shuts off (a lot more that 4.5 minutes). Can this be adjusted to be shortened? Where and how on the unit?

If you have one of the newer models the duration can be changed by holding in the lock button until the light blinks (about 10 seconds.) A single blink indicates that the timer is reset to 1½ minutes. Repeat the procedure and the light will blink twice, resetting the timer to 2½ minutes. Repeat again for a 3½ minute interval, etc. up to a maximum of four blinks and 4½ minutes.

If your opener has the motion sensor feature and a person enters the garage and walks in front of the door control the light will come on for 5 minutes and then shut off.

Sep 28, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Freezer frosts up and stops cooling after approximately 2 weeks

With your new timer in hand look and find a slotted screw driver head that you can turn. That is to manually advance the timer. Now put the new one in and advance it to engage the compressor and fan. Might be in the middle of defrost mode. Your unit goes through 3 defrost modes in a 24 hour period. And each mode last for 20 minutes. Once you do this I could help further if that was the case. Okay ken

May 02, 2009 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

Indoor unit runs ok outdoor unit compressor and fan do not start

Hello rfrizzell,

My unit is giving me the same alarm. If you have found the solution, please email me at

Thank you very much.

Mar 14, 2009 | Friedrich MR18Y3F Split System Air...

1 Answer

KitchenAid ksrb25fkss01- fan runs, warm air circulates

Compressor change is probably more than you wish to tackle.
1) must be certified to work with refrigerant.
2) requires silver soldering and or silver brazing.
3) requires re-charging with refrigerant and this is critical and must be measured to the oz.
If it works fine when it re-starts we need to find out what is stopping the compressor. First guess is a defrost timer. The unit goes into defrost at pre-determined intervals, depending on the defrost timer. When it goes into defrost, compressor goes off, heaters come on, and a defrost cycle is initiated. Following this, the heaters go off, (usually by a t-stat and not time), and the compressor is allowed to run again. Changing the defrost timer, which is probably one of the least expensive components, is worth a try. No guarantee, but it is a better choice than the compressor. If the tech did any tests, did he say why the compressor was questionable? Since this happens once or twice a week, it sounds like the timer or at least it is coinciding with a typical defrost cycle. Here is a possible test, when you find it blowing warm air in the freezer, advance the timer 1/4 turn cw. See if the compressor comes on when you do this. That is probably more info that you were looking for, but this is worth a try.

How old is the unit?


Nov 30, 2008 | KitchenAid KSRS25IL Side by Side...

3 Answers

Fujitsu Heat Pump - problems with timer? When starting the heat pump - the operation light, together with the timer light blinks twice, then the operation light blinks another five times. Then the...

I had the same problem. The heater did not work in heating mode. However it was OK in air-conditioning mode. The operation light and the timer light blink twice and then the operation light blinks for 5 times followed by few seconds non blinking, then the cycle repeats again. I have read on the internet that you better unplug the power cord and then plug it again so that the heater re-sets itself. My only problem was that my heater is directly plugged to the power with no visible plug. So I went to the main distribution board and put off the power for about 20 seconds for the whole home. HOORAY!! The heater worked after that.

Jun 24, 2008 | Fujitsu Heating & Cooling

1 Answer

Timer indicator light blinking

It is possible you may have dust inside the unit or the system is not well ventilated.

May 04, 2008 | Audio Players & Recorders

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