This is the Genuine Vacumaid Central Vacuum Main Control Board #PC120LE, 120 volts. It works if the unit's light is not coming on, but the motor is working after a test.   

Fits the following models:

• AstroVac SR12
• AstroVac SR14
• AstroVac SR36(one-piece relay/transformer)
• AstroVac SR36C(one-piece relay/transformer)
• AstroVac SR38
• AstroVac SR44
• AstroVac SR50
• AstroVac SR52
• AstroVac SR52H
• AstroVac SR54
• AstroVac SR10
• Imperium CV280
• Imperium CV300
• Imperium CV800
• Imperium CV3200
• Imperium CV3300
• Imperium CV7200
• Imperium CV7500
• Imperium CV7700 (Manufactured after 9/1/16)
• VacuMaid P-110
• VacuMaid P-125P
• VacuMaid P70 (one-piece relay/transformer)
• VacuMaid S1600
• VacuMaid SR12
• VacuMaid SR14
• VacuMaid SR36
• VacuMaid SR38
• VacuMaid SR46
• VacuMaid SR52H
• VacuMaid SR54
• VacuMaid SR58
• VacuMaid SR86
• VacuMaid SR800
• VacuMaid S2000
• VacuMaid S2400
• Valet AT-100
• Valet AT-120
• Valet ATQ-150
• Valet ATQ-1500
• Valet ATQ-160
• Valet ATQ-180
• Valet ATQ-300
• Valet ATQ-500