Honeywell UV SnapLamp Knob and Bulb 18 Watt
Price:From $89.00 to $119.00
Product Options
  Knob & Bulb
18 Watt
Bulb Only
18 Watt
Knob & Bulb
36 Watt
Bulb Only
36 Watt

Honeywell UC100E1006 Enviracaire 18 watt SnapLamp™ knob and bulb assembly. Genuine Honeywell. This assembly is installed with a simple twist. Future bulb replacement will only require replacing the bulb with a UC18W1004. Note running a burnt-out bulb may burn-out the ballast.

Overall bulb length is 8½ inches, glass length measures 7½ inches. The bulb has has two glass tubes fused together and two filaments, each tube is ¾" in diameter.

The bulb is snapped in to the knob. The knob has a 3" diameter with an overall length of 4". The knob has a built in light pipe that allows a safe inspection view of the UV light.

This UC100E1006 knob and bulb assembly is used in the UV100E1043 and earlier UV100A1000.

The UC100E1006 replaces the UC100A1005. The UC100A1005 was earlier slate color.

The knobs for the 18 watt units will not fit in the 36 watt units (and visa-versa), the knobs are keyed.

Ultraviolet Radiation will Cause Eye Damage

Ultraviolet light or UV radiation is very damaging to your eyes. UV rays can damage both the eyes surface and the interior of your eyes such as the retina.

The Honeywell UV systems using the UC100E1006 have a safety interlock switch that prevents running the unit without being installed in the ductwork. Also the dual lamp models require both knob/bulbs to be installed.

To view illumination a light pipe indicator is built-in to the knob. The indicator will have a violet glow when running.

Ultraviolet Radiation Warning

SnapLamp™ Detachable Bulb

In 2005 Honeywell introduced the SnapLamp feature. These newer units have a bulb that detaches from the knob, thus service only requires replacing the bulb. Earlier units had the knob and bulb affixed with epoxy and thus both the bulb and knob needed to be replaced as one assembly.

Customers that have the earlier knob-bulb assembly need to purchase the new detachable bulb assembly. Then future service only will require purchasing the bulb only.

Bulb-knob assemblies with the detachable bulb are labeled. The label will note the replacement part number UC18W1004 or UC36W1006. The new knob-bulb assembly may have the blue or slate color scheme.

UV100E1043 has SnapLamp

Honeywell UV100A Versus UV100E

Honeywell UV systems were first introduced in 2000. Honeywell then offered the UV100A and UV100E series. Then the only difference between the UV100A and UV100E was the color scheme. The UV100A models originally came with slate color tones. Whereas the UV100E had blue knobs and the base was white. See new and old photos below.

The UV100E models come with a five year warranty whereas the UV100A has a one year warranty. All Honeywell UV models sold by Bel-Aire are brand new and factory fresh with the latest warranty benefits. The warranty does not cover the bulb as they have an effective operating life of 8000 hours (approx one year if running full time). See the UV100E or UV100A Owners manual for complete warranty info.

The UV100E series was introduced under the Honeywell Enviracaire Elite brand. This new brand was designed to be more appealing to the residential customer. The Enviracaire Elite brand had a new bold look of blue and white. The UV100A series was under the traditional Tradeline brand with the gray color scheme shown below. With the success of the new look, the tradeline color scheme was phased out. All the new UV100A and UV100E systems now have the bold blue and white color scheme.

Now the difference between the UV100A and UV100E is SmartLamp. The UV100E has SmartLamp features that include cycling the lamp on and off to extend bulb life (see SmartLamp section below). The UV100A models do not have SmartLamp and simply run when plugged in.

New Style
UV100E1043 is the new style
Old Style
UV100a1059 is the old style

Ultra-Violet Service & Repair

If you find your Honeywell ultraviolet system not illuminating, then we have found it is usually not only the bulb that had burnt-out.

Honeywell UV owners are welcomed to send us their bulb or complete unit and we will test it with our test bulb and test fixture at no charge. You will need to include a prepaid return shipping label. First call or email for an RMA.

Customers with a UV system purchased from us that qualifies for warranty service will not need a receipt, we will have a record of your sale. If your UV unit has failed under warranty we will replace it at no charge and ship you a brand new unit.

There are no replaceable parts available for the Honeywell UV, so there are few repairs available. UV equipment purchased elsewhere can be shipped back to Honeywell for warranty replacement, see the owners manual (page 12).

We have seen a few new bulbs not illuminate to their full brightness. These bulbs have a swimming effect such as seen with fluorescent bulbs that fail. The bulbs are not cover under the Honeywell warranty. Bel-Aire will replace our customer bulbs that fail with in 30 days. We reserve the right not to replace reoccurring bulb failures as this may be a problem with the ballast.

We have noticed that new bulbs become blackened near the socket end soon after initial startup. But after several hours the blacken area will burn off.

We have seen a few SnapLamp bulbs not work because the bulb pins have pushed its mating socket. The socket is held in with two barbs and just needs to be pushed back in to place. Taking a part the knob to push in the socket will require a #10 tamper proof torx screw driver available at home centers. This problem is shown below in our photos.

UV testing is performed or overseen by Dave our resident electrical engineer (BSEE).

UC100E1006 Service and Repair

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