FIXED: Bosch HGS235UC/01: even after replacing igniter and gas valve, still no heat in oven

I have had a problem with our Bosch HGS235UC/01 gas range for some time. When I set it to the oven convection bake or regular bake mode, it would not heat up in normal time. The igniter became red-hot but the gas would not ignite until 20 minutes later; this delay became longer over time.

The igniter was the main suspect, so I decided to replace it on my own. But, to verify that this part needed to be changed, I tried to measure the current flowing through the igniter, which should be between 3.2 A and 3.6 A (as I understand it). Unfortunately, one of the meter probes with the igniter wires made contact with the metal panels underneath and caused a short-circuit and sparks to fly. This permanently damaged the coil inside the gas safety valve. I ordered a new igniter and new dual gas valve assembly. With great difficulty and effort (German engineering with no access to the screws, requiring dismantling of the whole unit!!!), I replaced these two parts.

Now, the igniter seems to work fine with about 3.4 A measured through it. Alas, for some unknown reason, the gas valve doesn’t open and as a result, the igniter doesn’t ignite the gas, because it’s not flowing. I’m really baffled because the gas valve coil and the igniter are connected in series, so the 3.4 A current has to flow through the gas valve coil as well, which should open the gas to the oven, but it doesn’t.

One thing that I noticed is that there’s a blinking red LED light (LED1) on the power board. What does it mean, and is it normal? Maybe, I damaged something on that board.
Of course, I should mention that the top of the gas range works fine, so there is no problem with the main gas supply. I could check the power board, but I don’t have access to the schematic, nor the service manual. If anyone has it, I would greatly appreciate a copy.

Also, any ideas are welcome. At this point, I’m quite desperate because it’s the third day that I’ve been trying to fix it, and my wife has become quite upset, as you can imagine.

via FIXED: Bosch HGS235UC/01: even after replacing igniter and gas valve, still no heat in oven
by Krakus

LG oven not heating properly LRE30451SB/01

Our oven heats to random temperatures, either heating way past the desired temperature and burning foods, or way under the desired temperature and not baking at all. I've checked the resistance on the temperature sensor and it checks out fine. I'm assuming that it's either the oven relay board or the oven control board... What and how can I test for either of these two?
We've had so many issues with this stove, including the recall on the burner control that wouldn't shut off the burners... Please help!

via LG oven not heating properly LRE30451SB/01
by recon481

LG oven not heating properly (LRE30451SB/01)

Our oven heats to random temperatures, either heating way past the desired temperature and burning foods, or way under the desired temperature and not baking at all. I've checked the resistance on the temperature sensor and it checks out fine. I'm assuming that it's either the oven relay board or the oven control board... What and how can I test for either of these two?
We've had so many issues with this stove, including the recall on the burner control that wouldn't shut off the burners... Please help!

via LG oven not heating properly (LRE30451SB/01)
by recon481

Bosch HGS235UC/01: even after replacing igniter and gas valve, still no heat in oven

I have had a problem with our Bosch HGS235UC/01 gas range for some time. When I set it to the oven convection bake or regular bake mode, it would not heat up in normal time. The igniter became red-hot but the gas would not ignite until 20 minutes later; this delay became longer over time.

The igniter was the main suspect, so I decided to replace it on my own. But, to verify that this part needed to be changed, I tried to measure the current flowing through the igniter, which should be between 3.2 A and 3.6 A (as I understand it). Unfortunately, one of the meter probes with the igniter wires made contact with the metal panels underneath and caused a short-circuit and sparks to fly. This permanently damaged the coil inside the gas safety valve. I ordered a new igniter and new dual gas valve assembly. With great difficulty and effort (German engineering with no access to the screws, requiring dismantling of the whole unit!!!), I replaced these two parts.

Now, the igniter seems to work fine with about 3.4 A measured through it. Alas, for some unknown reason, the gas valve doesn’t open and as a result, the igniter doesn’t ignite the gas, because it’s not flowing. I’m really baffled because the gas valve coil and the igniter are connected in series, so the 3.4 A current has to flow through the gas valve coil as well, which should open the gas to the oven, but it doesn’t.

One thing that I noticed is that there’s a blinking red LED light (LED1) on the power board. What does it mean, and is it normal? Maybe, I damaged something on that board.
Of course, I should mention that the top of the gas range works fine, so there is no problem with the main gas supply. I could check the power board, but I don’t have access to the schematic, nor the service manual. If anyone has it, I would greatly appreciate a copy.

Also, any ideas are welcome. At this point, I’m quite desperate because it’s the third day that I’ve been trying to fix it, and my wife has become quite upset, as you can imagine.

via Bosch HGS235UC/01: even after replacing igniter and gas valve, still no heat in oven
by Krakus

oven stopped working

Our Kitchenaide Superba Electric Convection Oven microwave combo suddenly stopped working

There are no lights coming on at display it looks as if it has no power

Breaker not tripped

The unit has power to the terminal blocks

fuse has continuity

any help would be welcome or a link to a repair manual if possible

via oven stopped working
by glengallo

GCR366 Capital gas range bake won't work

My Capital gas range bake ignitor won't get power, It has thermostate to turn on bake and select temp. Broil works good. I already replace Thermostate but no help. I did some troubleshooting, one wire coming from thermostate to gas valve the wire coming out from gas valve is going to ignitor. Voltage is coming to gas valve but nothing on ignitor.

via GCR366 Capital gas range bake won't work
by rakmo22

BOSCH NGMP055UC Cooktop- Not sparking

I have a gas cooktop that does not spark.

The cooktop is currently unhooked from the gas line. The LED lights come on when plugged into the 110v.
So far I have replaced the wiring harness and the ignition box. I'm afraid that the wiring is incorrect and I am unable to get the unit to spark.

Is there a wiring diagram anywhere? I've tried to search multiple avenues for a photo, video or screen shot of one of these units with the top off- no such luck.

From left to right the wiring harness starts with blue, orange, purple, red and lastly yellow. Each valve has and "in and out" the colored wires are all going into the ports numbered "13" on the valves and the black connections are all going into the "11" ports. There is one valve in the middle that's different, due to the dual burner in the middle and this valve isn't labeled the same, nor is the same size, nor orientation as the smaller valves. I have the purple wire clipped to the left terminal thats in the middle of the valve switch and the black lead on the harness is clipped to the terminal on the end of the valve. The colored wire harness is all taped together and flows into a preset order on a plastic plug, this plug has been plugged into the blue ignitor box.

Out of the back end of the ignitor I have the wires in the following order- (left to right) blue upper level, orange lower level, purple upper level, red lower level and yellow upper level.

I currently have the top stainless cover off as well as the burner covers. I tested the unit by putting one burner cover on and trying to spark it. I did not set all five in place. There was no clicking, spark or anything of notice.

On the main power cord I have the wires as black in the top terminal, white in the middle and the green ground as the lowest. I'm all out of ideas without any wiring diagrams! What am I missing?

Thank you!

via BOSCH NGMP055UC Cooktop- Not sparking
by evacait