Thermocouple

[carlyai]

I'm looking for a replacement thermocouple. 

I'd love to know if I can easily source something like in the picture in Thailand. 

I don't know the part number yet, but if anyone knows of a thermocouple shop that would be great.

The destruction manual said to test it with a mv meter from the tip to the copper gas pipe at the bottom and the reading should be 15mv with the pilot ignite switch depressed. The reading was near 0mv.

[carlyai]

Woooppps pushed the wrong button. Here are the pics.

[Salerno]

1 minute ago, carlyai said:

I'd love to know if I can easily source something like in the picture in Thailand. 

 

It appears you forgot the picture.

[carlyai]

[Salerno]

5555 beaten by a nano second. 

 

Some decent tradies on here, sure they'll point you in the right direction soon.

Edited November 15, 2020 by Salerno

[Crossy]

86 Baht on Lazada https://www.lazada.co.th/products/universal-thermocouple-gas-stove-thermocouple-i981368860-s2123530234.html

 

If you have a local place that fixes gas stuff (or even your local gas bottle place) pop the beast out and nip there with it.

 

[carlyai]

I've replaced a thermocouple in our gas hob before, but this one is a different looking beast. 

[Crossy]

9 minutes ago, carlyai said:

I've replaced a thermocouple in our gas hob before, but this one is a different looking beast. 

 

Pop him out and let the dog see the rabbit.

 

[carlyai]

10 minutes ago, Crossy said:

 

Pop him out and let the dog see the rabbit.

 

Will do. I ordered the one of Lazada as well. Thanks again.

Never heard that one before....must be quaint Old English?

[Andrew Dwyer]

15 minutes ago, Crossy said:

 

Pop him out and let the dog see the rabbit.

 

That’s what she said last night !! ????

[carlyai]

32 minutes ago, Andrew Dwyer said:

That’s what she said last night !! ????

Well once you get it out, how do you get it back in?

Looks like a tape worm. Happy Sunday breakfast.

[carlyai]

Just now, carlyai said:

Well once you get it out, how do you get it back in?

Looks like a tape worm. Happy Sunday breakfast.

There's a sticker on it that says, in many languages ' DANGER. Teachers should NOT be stuffing with things they no squat all about!'

[carlyai]

Found the part number: EC009. US $74.40. There is an equivalent: 50-3405.

The bit of literature says it is a quick acting thermocouple. 

I would guess that the gas hob thermocouple are quick acting as well. 

I don't feel inclined to pay US $ 74 plus freight etc at the moment.

I think I'll wait for the one from Lazada to arrive and see if my local gas man can change the thermocouple head over.

 

[Crossy]

4 minutes ago, carlyai said:

I think I'll wait for the one from Lazada to arrive and see if my local gas man can change the thermocouple head over.

 

Like cats, you can't take them apart.

 

The "universal" one has a good chance of fitting (or able to be made to fit).

[chickenslegs]

3 hours ago, carlyai said:

I'm looking for a replacement thermocouple. 

I'd love to know if I can easily source something like in the picture in Thailand. 

I don't know the part number yet, but if anyone knows of a thermocouple shop that would be great.

The destruction manual said to test it with a mv meter from the tip to the copper gas pipe at the bottom and the reading should be 15mv with the pilot ignite switch depressed. The reading was near 0mv.

This may be a daft question ... have you tried cleaning it.

 

Edited November 15, 2020 by chickenslegs

[carlyai]

2 hours ago, chickenslegs said:

This may be a daft question ... have you tried cleaning it.

 

No don't think it's a daft question. 

I heated the tip up again when I got it out, and measured the voltage at the other end and there was 0 volts. Even being a bit sootish I still think I should have had a voltage reading. 

[Crossy]

This is most definitely NOT recommended!!

 

 

[carlyai]

9 minutes ago, Crossy said:

This is most definitely NOT recommended!!

 

 

I liked his safety concerns about making sure the gas is off before you start and making sure you put the seal back on the solenoid properly so gas doesn't leak.

Don't think even a teacher would do that to their indoor gas log fire.

Lucky it's not in Thai language. ????

 

[carlyai]

Now my nobs fallen off.

 

[chickenslegs]

43 minutes ago, carlyai said:

No don't think it's a daft question. 

I heated the tip up again when I got it out, and measured the voltage at the other end and there was 0 volts. Even being a bit sootish I still think I should have had a voltage reading. 

My dad used to clean them with a piece of emery cloth. He had 4 gas fired driers in his laundry. Buying new was always a last resort for him.

 

But, I see that yours is now beyond resurrection.

[Salerno]

19 minutes ago, carlyai said:

Now my nobs fallen off.

 

???? Perhaps a doctor rather than a tradie is required.

[carlyai]

56 minutes ago, chickenslegs said:

My dad used to clean them with a piece of emery cloth. He had 4 gas fired driers in his laundry. Buying new was always a last resort for him.

 

But, I see that yours is now beyond resurrection.

I did give it a bit of a clean, but I still would have expected a voltage reading when I heated the tip.

I think putting the nob back on and replacing head is just a soldering job but that may not fix it. I think the best thing to do is to order a new one, so I have sent messages to Aus and China suppliers. Chinese gas fire mobs don't usually reply cause they want to send you a new fire place and some Aus places are or were so politically correct they only sell to licenced gas fitters.

 

[carlyai]

I see you can't change bits.

[Crossy]

1 hour ago, carlyai said:

Aus places are or were so politically correct they only sell to licenced gas fitters.

 

Just send them your Thai driving licence.

 

http://news.bbc.co.uk/2/hi/uk_news/northern_ireland/7899171.stm

 

[carlyai]

Replaced the thermocouple and pilot light now stays on. 

Now the main gas burner won't come on    pgrrrr. 

Can't see any wires I've dislodged so will clean the thermopile and fault find. May even revisit the Most definitely do not do this video. ????

[Crossy]

Good to know that the "universal" one actually fits.

 

That the pilot stays on suggests that it's working, how is the main burner controlled?

 

[carlyai]

2 hours ago, Crossy said:

Good to know that the "universal" one actually fits.

 

That the pilot stays on suggests that it's working, how is the main burner controlled?

 

Controlled from a thermopile. But there are a thermostat and burner on/off switch in the circuit. It was a bit of a job to get the new thermocouple in so I could have dislodged a wire or something but all looks OK.

Seems like the pilot flame on the thermocouple causes a small voltage that activates the gas solenoid and the solenoid is activated more from the thermopile. That's what I think happens. I can't see a voltage from the thermopile, but have to check again. 

Seems strange that the thermopile would fail as well. Lots of thermopiles on Lazada. Definetly only a small amount of gas getting to the burner as there is a small flare when I fire a gas gun at the burner.

The brass screw connector to the thermocouple housing is not the right fit so I didn't screw it on, but I can't see that effecting anything as the pilot stays on and the thermocouple is positioned in the flame.

 

[Litlos]

The fast acting bit is the narrowing of the thermocouple casing. Is it an instantaneous or storage type heater?  Sounds like a storage type,

 

Cheers

[carlyai]

12 hours ago, Litlos said:

The fast acting bit is the narrowing of the thermocouple casing. Is it an instantaneous or storage type heater?  Sounds like a storage type,

 

Cheers

Thermocouple replaced now OK. Other thermopile problem fixed, cleaned the thermopile and solenoid bit slow to engage but OK. It's a gas log fireplace. 

[Litlos]

2 hours ago, carlyai said:

Thermocouple replaced now OK. Other thermopile problem fixed, cleaned the thermopile and solenoid bit slow to engage but OK. It's a gas log fireplace. 

All is well that ends.

 

Cheers