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Carrier gas furnace 394gaw00010. Woke up to no pilot light…

Customer Question
Carrier gas furnace 394gaw00010. Woke...
Carrier gas furnace 394gaw00010. Woke up to no pilot light or heat this morning.
Blower works damper works gas is on
Submitted: 6 months ago.Category: HVAC
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Customer reply replied 6 months ago
Checked circuit breaker
Checked filter
Checked thermostat
Can’t afford to replace the old girl right now
Help
Answered in 8 minutes by:
12/19/2017
HVAC Technician: airheatman, HVAC Technician replied 6 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9,175
Experience: Furnace, A/C and heat pump specialist.
Verified

This is an old one before we had the eror lights on board to help us with troubleshooting.Let me see if I can find a manual. Meanwhile jump R to W on board and see if heat will come on

https://i.imgur.com/JprQdYv.png

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Customer reply replied 6 months ago
Can you clarify “board”
Customer reply replied 6 months ago
I don’t have alligator clips. What can I use?
HVAC Technician: airheatman, HVAC Technician replied 6 months ago

BOard is in blower compartment.Use needle nose pliers or a paperclip

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Customer reply replied 6 months ago
Okay will check when I get home form teaching today. Thanks
HVAC Technician: airheatman, HVAC Technician replied 6 months ago

We will go from here.

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Customer reply replied 6 months ago
Did the jump at thermostat then furnace. No pot light ignition
Customer reply replied 6 months ago
That’s pilot light
HVAC Technician: airheatman, HVAC Technician replied 6 months ago

OK there are several limits in the circuit between transformer and valve. Just for a test bypass each one (or test continuity) to see if one is open.

Here are the limits:

1.Fusible link

2.Main limit

3.Vent safety switch

4.Aux limit

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