• Hi Guest!
    If you enjoy and benefit from your participation at British Car Forum, please consider supporting our efforts with a subscription.

    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this banner)
Tips
Tips

MGB MGB heater motor problem

ernpool

Freshman Member
Country flag
Offline
Hi, Guys! I have a 1976 MGB that was sitting for 9 years. The heater motor does not come on. I have tested for power at the wires going into the motor and I have no voltage to the motor. Any quick tricks?
Also all 4 brakes seem to be engaged. Likely causes? Thanks in advance
 
Next step back is to check for power at the switch (these don't use a relay of any sort, the switch controls the motor directly). Do other things that only function in the "key on" position (like brake lights, wipers, turn indicators) work?
 
From the diagram (advanceautowire.com) the switch gets power from a green wire pairing off the tach's power lead.
 
Similar threads
Thread starter Title Forum Replies Date
T MGB 1980 MGB heater blower motor MG 1
T MGB Heater blower motor for 1980 MGB MG 2
Mickey Richaud MGB MGB Heater, Anyone? MG 0
69MGC MGB MGB Heater Box Removal MG 15
V MGB-GT MGB GT V8 Heater valve replacement MG 0
R6MGS MGB MGB heater install....advice??? MG 7
N MGB MGB heater flow or lack of MG 6
R6MGS MGB Need some MGB heater parts MG 4
N MGB What came out as I pulled the heater core for MGB MG 7
kyreb1862 MGB Induction Heater For 77 MGB MG 2
kyreb1862 MGB MGB Heater Valve MG 9
blacknite3 MGB New MGB owner seeking Heater advice MG 12
I MGB 1980 mgb heater box MG 2
R MGB 74 MGB Chrome Bumper New Harness MG 3
wkilleffer MGB MGB windshield replacement near me MG 7
T Wanted MGB Coil Over Front Suspension MG Classifieds 0
R MGB 74 MGB Chrome bumper Grounding (Polarity) Question MG 7
Carlbanan56 MGB MGB cylinder head MG 11
C MGB MGB steering rack MG 0
D MGB 1979 MGB for sale near me MG 3
Carlbanan56 MGB MGB valve seals MG 1
M MGB 1967 MGB starter conversion MG 9
CJ Burton MGB-GT Bolts for INERTIA STARTER on 1966 MGB GT MG 10
M MGB Ground polarity '67 MGB MG 2
M For Sale 1978 MGB MG Classifieds 0
Carlbanan56 MGB MGB oil consumption MG 5
ab-1970mgb Wanted 1970 MGB - Emissions Parts MG Classifieds 4
C MGB Re strapping a MGB seat bottom MG 2
Simmo MGB Re Engined MGB MG 4
Carlbanan56 MGB MGB rear break rebuild MG 6
C Wanted Early MGB soft top and/or tonneaus, condition not very important MG Classifieds 0
Carlbanan56 MGB Mgb turn signals MG 17
J MGB 1970 MGB Steering Lubrication MG 1
L SOLD!! For Sale MGB Hardtop MG Classifieds 3
EvansClassicCars For Sale 1980 MGB for sale MG Classifieds 0
J MGB Tire pressure for 1980 MGB MG 14
5 Wanted Wanted 1966 mgb banjo type axle rear hub MG Classifieds 0
I MGB Purchase of 1972 MGB Roadster MG 3
C MGB-GT MGB-GT Front Ride Height MG 0
J MGB Advice for new MGB owner? MG 16
D Wanted Wanted: Chicklet Headrests for MGB/C! MG Classifieds 0
Editor_Reid MGB Anders Clausager's "MGB" book MG 4
J MGB 1966 MGB won't start MG 1
Erica General MG Oil Drain Valve -- mine is an MGB, but they have others MG 3
TunaJ Will MGB Upper Seat Runners work with Midget seat rails? Spridgets 1
Erica MGB Carburetion and MGB fuel economy. MG 0
wkilleffer MGB MGB clutch slave bleed driving me nuts MG 38
R MGB side chrome installation MG 4
C MGB MGB MG 5
3798j Off Topic MGB at the Drive in Bank MG 1

Similar threads

Back
Top