Educate Me Section

Diagnosis of problems
Understanding refrigeration
Homeowner helpful hints
Filtration & More
Understanding thermostats
Outside units and safety
Indoor Coils and drains
Links & Search

Pleated filters 40% 1 in.
Pleated filters 40% 2 in.
Pleated filters 60% 2 in.
Pleated filters 40% 4 inch
Pleated filters 60% 4 inch
Media filters 4 3/8 inch
Frame & filters 4 3/8 inch
Generic Media
Ultraviolet Lights
Electronic Air Cleaners
EAC Replacement Cells
Prefilters & Postfilters
Airwatch®, Monitors
Ventilation Units
Dampers & Actuators
CO & CO2 Sensors
Smoke Sensors
Portable HEPA Filter

COMPARE --
Programmable.pdf
Non-Programmable.pdf
Non-Digital.pdf

VisionPro™ IAQ *Best
VisionPRO© 8000 *Best
CommercialPRO™8220 *Best
CommercialPRO™7220 *Great
FocusPRO™ 6000 *Great
FocusPRO™ 5000 *Better
PRO™ 4000 *Better
PRO™ 3000 *Good
PRO™ 2000 *Basic
Low Voltage Accustat®
Honeywell Line Voltage
Line Voltage Accustat®
Digital Round
Non-Digital bi-metal
Electronic Programmable
Heat Pump
Flush Mount
Non-Programmable
Sale Models
PC8900 Perfect Climate
Outdoor Sensors A or B
Telephone Access
Remote Room Sensors
Communicating Tstat
Networked Zoning
Honeywell® MiniZone®
Flood Alert Switch
Zoning Catalog.pdf

Bypass Disk
Bypass Flow Through
Power Flow Through
Steam Power
Controls & Components
Skuttle® Parts
Honeywell® Parts

Reznor® Garage Heating
Separated Combustion
Standing Pilot
Oil Fired
Hydronic
Indoor Heaters
UpFlow Indoor
Infrared Heaters
Empire® Gas Heaters

serving Do-It-Yourselfers since 1990.
Satisfying every customer....one at a time!

Call toll free 1-866-584-0355 or 1-903-759-2160 fax 903-759-4605
309 Patriot Circle, Longview, TX 75604-2240

• Run capacitor.

  Look for the larger run capacitor for the compressor (or it may be like this picture and housed in the same body with the fan motor run capacitor). Examine it for bulging or bad wiring terminals or wires. Make sure no fluids have escaped or there are no ruptures. If you cannot check its capacitance and you suspect it has a problem, take it to a service shop or supplier and let them test it.

• Compressor terminal wires. Open the compressor TERMINAL BOX COVER on the side of the compressor and examine the wires and terminals for defects.
• Contactor and points. Make very sure all the connections for the compressor wire are good and that there is no break of the wires in route to the compressor. Examine the points of the contactor.
• Start capacitor and relay. Look for physical damage to the capacitor and have it and the relay tested or replaced if necessary or if you are in doubt.
• High voltage. If you have a three phase voltage to the unit, make sure all the legs of the supply current are proper voltage.
• Stuck compressor. If the internal bearings are bad or if the oil inside the compressor has all migrated out into the system or if air has been allowed into the system, then the compressor can stick. This means that it is frozen in that one position. If you can get it to move just a little bit, you might can save it for a while. It will be damaged to the point of needing to be replaced, but you might can get cooling for a while if it will come unstuck. Read the material in Compressor will not start but the outdoor fan runs.

• Human error. Make sure you are not just hearing the hum of the contactor instead of the hum of a compressor that won't start.
• External overloads. On some older units and many of the big units, the compressor has external overloads in the wires going back to the contactor from the compressor. These overloads can and do become weak and may need replacement. It can be and should be checked -- especially if it is a three phase unit.

Honeywell®
VisionPro® IAQ
whole house control

Honeywell® FocusPro
non-programmable

Honeywell®
Electronic Air Cleaner

Honeywell®
Media Filters

Honeywell®
UV Lights & Bulbs

Honeywell®
Carbon Monoxide
Alarms

Honeywell®
Electronic Air Cleaner
Replacement Cells

Honeywell®
LineVoltPRO™
programmable

Honeywell
Rectangular Zone Dampers

Honeywell
Round Zone Dampers

Reznor
Infrared Heaters