Radiant Tube Leaking Burnt Gas; Condensation Is Forming; Emitter Tube Is Bowing; Tube Is Corroding - Re-Verber-Ray DX Troubleshooting Manual

7 - Radiant Tube Leaking Burnt Gas

Obstructions in the heater may cause too much heat in a specific point, leading to holes or cracks. These
openings can cause burnt gas to leak out. If this problem is occurring, follow these steps:
Carefully inspect the length of all emitter tubes and clamps for any cracks, holes or loose connections. If any
part of the tube has an opening, it must be replaced immediately. Also check for blockages in the exhaust and
emitter tube.

8 - Condensation is Forming

If condensation is forming anywhere along the length of the emitter or exhaust pipe, check to make sure that it is
not excessive in length. Be sure that the heater has the appropriate manifold pressure (see 6.1, 4.4). Confirm the
use of adequate vent material (26 gauge minimum is required). Inspect the baffle location (it should be found at
the exhaust end of the emitter tube), insulate vent materials, and seal leaks around vent openings. Chemicals
burned through the combustion process can alter the exhaust by-products and temperature. See your heater's
manual for air-intake specifications.

9 - Emitter Tube is Bowing

Normal operation of the heater will often cause expansion of the emitter tube. If there is no room for this to
occur, the tube will bow. If this is happening, follow steps 9.1 - 9.4.
9.1
Too little air will lead to shorter flame, causing it to burn hotter than normal. Be sure there is nothing blocking
the air intake and that the fan is clean (pg. 8, pics. 5 & 8).
9.2
Contaminated combustion air could alter the flame characteristics, overheating the tube and causing it to bow.
See your manual for air-intake specifications.
9.3
Too much gas may also overheat the tube and cause it to bow.Check the manifold (see 6.1) pressure (pg. 8, pic. 6).
9.4
If the heater is mounted so that it cannot expand lengthwise (ie. it is cemented into the wall at both ends), add a
16" section of flex on the inlet side of the heater and allow the exhaust to move freely through the wall.

10 - Tube is Corroding

The tube would corrode if the air entering the heating system was not clean. See your heater's manual for
combustion air intake instructions.
Refer to warnings on cover prior to servicing the unit. Bypass safety pressure switches for supervised troubleshooting purposes only.
*Do not leave switches bypassed while the heater is unattended or for normal operations.
Consult Detroit Radiant Products for further technical information
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