Engineering Report
02/13/2014
Officer Koubek
Was Power Interrupted:
no
Time Of Power Outage:
Length Of Power Outage:
Diesel Fuel Level:
0.66
Propane Fuel Level:
0.74
Gasoline Fuel Level:
0.65
Fuel Notes And Comments:
Atv Oil Quarts:
N.A.
Car Oil Quarts:
N.A.
Oil Notes And Comments:
Trailer Potable Water Level:
50
Trailer Potable Water Refilled:
no
Outside Potable Water Level:
30
Outside Potable Water Refilled:
no
Loft Potable Water Gallons:
40
Loft Potable Water Refilled:
no
Potable Water Meter Reading:
77944
Greenhouse Notes And Comments:
low humidity 17%
Telescope Used:
no
Observatory Notes And Comments:
Network Failed:
no
Network Throttled:
no
Network Signal Strength:
184
Network Download Allowane:
41
Network Notes And Comments:
Hvac Air Conditioner Used:
no
Hvac Furnace Used:
yes
Hvac Lab Wall Heater Used:
no
Hvac Upper Deck Thermostat Setting:
70
Hvac Upper Deck Temperature Reading:
75
Hvac Lower Deck Thermostat Setting:
-
Hvac Lower Deck Temperature Reading:
-
Hvac Notes And Comments:
Hab Car Used:
no
Hab Car Oil Checked:
no
Hab Car Tire Status:
Hab Car Odometer:
Hab Car Notes And Comments:
Atv One Used:
no
Atv One Oil Checked:
no
Atv One Fuel Used Gals:
Atv One Tires Status:
Atv One Hours Used Day:
Atv One Hours Used Year:
Atv One Notes And Comments:
Atv Two Used:
yes
Atv Two Oil Checked:
no
Atv Two Fuel Used Gals:
0,5
Atv Two Tires Status:
OK
Atv Two Hours Used Day:
2
Atv Two Hours Used Year:
Atv Two Notes And Comments:
OK
Atv Three Used:
yes
Atv Three Oil Checked:
no
Atv Three Fuel Used Gals:
0,5
Atv Three Tires Status:
OK
Atv Three Hours Used Day:
2
Atv Three Hours Used Year:
Atv Three Notes And Comments:
OK
Atv Four Used:
yes
Atv Four Oil Checked:
no
Atv Four Fuel Used Gals:
0,5
Atv Four Tires Status:
OK
Atv Four Hours Used Day:
2
Atv Four Hours Used Year:
Atv Four Notes And Comments:
OK
Atv Five Used:
no
Atv Five Oil Checked:
no
Atv Five Fuel Used Gals:
Atv Five Tires Status:
Atv Five Hours Used Day:
Atv Five Hours Used Year:
Atv Five Notes And Comments:
No ATV 5
Comments:
There is serious error in Forced Air Furnance.
Error decription: Limit switch open.
- there is a limiter switch 314848 L150-40F 60T11 1232356208
- the system reports Diagnostic Fault Code: LIMIT SWITCH OPEN.
- serial numbr of the system: W1K2170102
How does it work in real world:
When you switch on the system it works for around 2 minutes properly. Then the system heates up and start malfunctioning. It means cold air goes from all vents.
Repair: repair is not difficult. You can either change the limit switch or try to clean it. I found a lot of dust in the furnance because the main air filter was not installed properly or felt. I changed air filter for new one and installed it properly. I am not going to clean the switch as there are some legal factors and we don't have the part as well.
My opinion about cause of the malfunction is that the sensor is dirty from dust.
Temperature in the Hab is OK, sometimes it goes to around 64°F during the night.
I am including a photo of limit switch for further reference.
Price of the part starts at 18 bucks.
I strongly recommend using authentic original part.
MODEL NUMBER of the Furnance: TG8S100B12MP11A