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Heating system electrical shutoff switch (C) Daniel FriedmanIndex to Heating & Cooling & Water Heater Controls, Switches, Relays, Reset-Buttons

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Electrical power switches & emergency off switches, control relays, door switches, reset-buttons, safety switches, & controls for air conditioners, heat pumps, heating equipment, water heaters:

This article lists & describes the usual location and function of electrical switches that control or power to all types of air conditioning, cooling equipment, heat pumps, heating equipment or water heaters. Our page top photo shows a typical emergency off switch for a heating system. Our photo below shows a fuse box that is used to accomplish the same purpose, though this older switch is more likely to be found near the entry to a basement where heating equipment is located.



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A Guide All Controls & Switches for Air Conditioners, Heat Pumps, Heating Furnaces & Boilers, Electric Furnaces, Water Heaters

Oil burner shutoff fuse switch (C) Daniiel Friedman

For details about the setting, re-setting, or function of the controls and switches commonly found on air conditioners, electric heat, heat pumps, boilers, furnaces (warm air heating systems) and water heaters, see these articles:

Master Index to HVACR & Water Heater Controls & Switches

Air Conditioners & Heat Pump Controls

Electric Heat Controls

Heating Boiler (hot water heat) Controls

Heating Boiler - Steam Boiler Controls

Heating Furnace (warm air heat) Controls

Water Heater Controls (Calorifier, Water Cylinder, Hot Water Heater)

The articles at this website describe the basic components of a home heating system, how to find the rated heating capacity of an heating system by examining various data tags and components, how to recognize common heating system operating or safety defects, and how to save money on home heating costs. We include product safety recall and other heating system hazards.

If your building has lost heat, checking that the heating equipment is actually turned "on" at all of these switches is a first step in diagnosing the problem. This article series answers most questions about central heating system troubleshooting, inspection, diagnosis, and repairs.

We describe how to inspect, troubleshoot and repair heating and air conditioning systems to inform home owners, buyers, and home inspectors of common heating system defects.

Electrical power switches on heating and cooling systems: where will the power switches be located, how do we know if we have turned on power to the heating or cooling system?

Electrical switches that turn off electric power that operates any type of heating system: furnace, boiler, steam boiler, heat pump, electric heat, are required for both safety and for service.

An emergency off switch for the building heating system should be found outside of the basement or other boiler or furnace room location and accessible so that an occupant can, in an emergency, turn off heat without having to enter a possibly smoky or dangerous area.

A second electrical "off" service switch should be found on or very close to the heating equipment itself. This second service switch is used by the heating service technician.

A third electrical switch or fuse turns off power to the heating equipment service at the building electrical panel. If a circuit breaker has tripped or a fuse has blown on the heating equipment's electrical circuit, you may be able to restore heat at the electrical panel.

But for safety reasons it is important to determine why the fuse blew or the circuit breaker tripped. If you replace a fuse or re-set a circuit breaker and the fuse blows or circuit breaker trips again, do not restore electrical power to that circuit - call a service technician to diagnose and repair the problem.

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COOLING & HEATING CONTROL & SWITCH INDEX at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

INDEX to RELATED ARTICLES: ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS

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INDEX to RELATED ARTICLES: ARTICLE INDEX to HEATING SYSTEMS

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INDEX to RELATED ARTICLES: ARTICLE INDEX to ARTICLE INDEX to WATER HEATERS

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