TROUBLESHOOTING
No Display, or Garbled Display | TEMPERATURE | Value | |
(in degrees F) | (in Ohms) | ||
Check the 120VAC power input to the Harmony. Turn power to the | 0 | 42683 | |
Harmony off and back on. | |||
10 | 31215 | ||
| |||
TEMPERATURE INPUTS | 20 | 23089 | |
25 | 19939 | ||
Display shows OPN | |||
30 | 17264 | ||
Check the System Startup settings (pg. 11) to be sure the Harmony is | |||
configured correctly to read the temperature input. Then check a | 35 | 14985 | |
sensor is connected and the wires are continuous to the Harmony. | 40 | 13040 | |
Finally follow the procedure for Incorrect Temperature Display. |
|
| |
45 | 11374 | ||
Display shows SHT | 50 | 9944 | |
The Harmony sees a short across the sensor input terminals. |
|
| |
55 | 8714 | ||
Remove the wires from either the SYSTEM TEMP or OUT TEMP | |||
60 | 7653 | ||
terminals (whichever is reading SHT). The display should change to | |||
70 | 5941 | ||
read OPN. If it doesn’t, the Harmony may be damaged. | |||
80 | 4649 | ||
Display shows an Incorrect Temperature Display | |||
Remove the wires from either the SYSTEM TEMP or OUT TEMP | 90 | 3667 | |
terminals (whichever is reading incorrectly). The display should | 100 | 2914 | |
change to read OPN. If it doesn’t, the Harmony may be damaged. |
|
| |
110 | 2332 | ||
Take an ohm reading across the detached sensor wires. The ohm | 120 | 1879 | |
reading should correspond to the side chart. If it doesn’t, the sensor | |||
130 | 1524 | ||
may be damaged. | |||
140 | 1243 | ||
| |||
| 150 | 1021 | |
STAGE OUTPUTS | 160 | 842 | |
When the unit's Mode is set to ON, the unit does not come | 170 | 699 | |
on | 180 | 583 | |
To set the Mode to ON, see pg. 22. Remove any wires attached to the | 190 | 489 | |
Harmony output. Check for continuity across the stage's N.O. | 200 | 412 |
contacts. If there is continuity, the Harmony output is working correctly. Check the wiring and the unit being energized to determine why it is not operating.
Red stage light is lit, but the unit is not on
The Harmony is calling for this unit to be on. Follow the procedure above.
Red stage light is not lit, but the unit is on
The Harmony is not calling for this unit to be active. Remove any wires attached to the Harmony output. Check for continuity across the N.O. contacts. If there is no continuity, the Harmony output is working correctly. Check the unit for any other operating controls which may be causing it to energize.
SYSTEM OUTPUT
Output is required but the SYSTEM component does not come on
Check the display to see if the temperature is above the Set Point or if the Outdoor Cutoff is active.
Red SYSTEM light is lit, but the SYSTEM component is not on
The Harmony is calling for the unit. Check for continuity across the N.O. SYS contacts. If there is continuity, the Harmony is working correctly. Check the wiring and the component being energized to determine why it is not operating.
Red stage light is not lit, but the SYSTEM component is on
The Harmony is not calling for the component to run. Remove any wires attached to the Harmony's SYS terminals. Check the N.O. terminals are open. If they are, check the unit for any other operating controls which may be causing it to energize.
TROUBLESHOOTING
27
