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#1
10-19-2025, 10:13 PM
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Power Top Fuse
I blew the fuse for the power top, what number is it suppose to be?
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#2
10-20-2025, 05:33 AM
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I think it is a circuit breaker?
(been a long time since my 69 Convertible) Pic of fuse box: 
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
10-20-2025, 07:34 AM
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Quote:
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#4
10-20-2025, 03:03 PM
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Factory power top set up was a fusing bar if no other electric assists (seat or windows) or a breaker if the car has seat or window assists. I can't check right now but pretty sure they are 30 or 35 amps.
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My Break Away Squad 1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s) 1969 Custom S 2dr ht 1969 LeMans (2dr & 4dr ht & Cvt) 1969 LeMans Safari wagon 1969 GTO (2 Cvt, 2 ht & Judge ht) 1969 Cat (3 Cvt’s & a 2dr ht) 1969 Ventura wagon 2 seat 1969 Exec 4dr post 1969 2 Bonnie Cvt's & 2 wagons 1969 Bonnie Brougham (4dr ht & Cvt) 1969 Grand Prix 2 SJ’s 1969 2+2 2dr ht (Canadian) |
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#5
10-20-2025, 04:41 PM
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It's a 40 Amp circuit breaker.
Look in the back of your owners manual under fuse specifications A circuit breaker is better than a fuse for things like power windows, seats and top. If there is an obstruction which stalls out the motor it will trip the circuit breaker. After a short period of time it will reset and operation can resume after the obstruction is removed. If it was fused, you're stuck with a half open window or top until the fuse can be replaced Circuit breakers are available from our sponsor. https://www.amesperf.com/parts/26576/ .
__________________
Ed 1968 GTO (Thanks Mom) 2006 Silverado 2015 Chevy Express  2024 Cadillac LYRIQ 
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#6
10-20-2025, 08:42 PM
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Quote:
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#7
10-21-2025, 05:10 AM
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Yes.
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#8
10-21-2025, 08:04 AM
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But like anything 50 plus years old they can fail. Typically if they go bad they will just jump at lower than their rated capacity.
__________________
My Break Away Squad 1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s) 1969 Custom S 2dr ht 1969 LeMans (2dr & 4dr ht & Cvt) 1969 LeMans Safari wagon 1969 GTO (2 Cvt, 2 ht & Judge ht) 1969 Cat (3 Cvt’s & a 2dr ht) 1969 Ventura wagon 2 seat 1969 Exec 4dr post 1969 2 Bonnie Cvt's & 2 wagons 1969 Bonnie Brougham (4dr ht & Cvt) 1969 Grand Prix 2 SJ’s 1969 2+2 2dr ht (Canadian) |
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#9
10-21-2025, 11:01 AM
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You all might find this discussion of an auto breaker interesting. I found it a while back. Be sure to watch the video.
https://www.galvinpower.org/how-does...-breaker-work/ |
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#10
10-21-2025, 01:31 PM
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And your headlights work on the same principle. If you have a shorted beam, the headlight switch internal circuit breaker will open and reset until the beam or short has been repaired. This will allow you to travel during the night to the next service facility. The only difference is, the headlight circuit breaker is built into the switch.
__________________
Ed 1968 GTO (Thanks Mom) 2006 Silverado 2015 Chevy Express 2024 Cadillac LYRIQ
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