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Mend Johnson and Starley J25-32 MK3 Home Heating Systems

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Mend Johnson and Starley J25-32 MK3 J25 Modairflow

How can I replace a thermocouple on J25 - 32 MK3?

I would be grateful if some one can tell me how to replace a thermocouple on a J25 - 32 MK3 Modairflow, Johnson and Starley.
The last time it needed replacing I called out an engineer and he charged £60 for 5 - 10 minutes work. At the moment I can not afford to call out any one.
It looked like a very simple process and I would be grateful for assistance with this task.

Hassan
October 2012
Johnson and StarleyJohnson and Starley J25-32 MK3Heating, Home Heating SystemsJ25 Modairflow Johnson

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Find out how to mend Johnson and Starley J25-32 MK3 home heating systems
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Mend Heating, Home Heating Systems
Find out how to mend Johnson and Starley J25-32 MK3 home heating systems