RedT
Well-known member
Reefer Performance
Opinions solicited, please. Electronic control problem, cooling problem, normal condition?
Facts: Norcold Model NB22 (15 years old)
April 12, 2018 noted reefer temp 48 degrees, outside temp 80 degrees, windy conditions, temp setting increased from "7" to "9" (max). Operation changed from elec to gas, no change.
April 13, 2018 Early morning reefer temp 31 degrees, temp setting turned down to "7" Mode changed to Elec. No wind
Apr 14, 2018 Reefer temp at 4:30 AM 36 degrees at a #7 temp setting. Clnsidered this to be normal operation.
Next outing, May 10, 2018
Reefer turned on at 4:00 PM yesterday, OAT = 100 degrees. Reefer temp 36 degrees at 4:00 AM this morning. During travel to campground (gas operation) the reefer temp continued to climb. At 63 degrees in the box, a fan was placed in the back of the reefer compartment. Temp slowly began to decline. At 9:00 PM reefer temp was 50 degrees, was a windy day.
May 11, 2018 Reefer temp at 5:00 AM was 40 degrees, 39 degrees at 7:00 AM, 42 degrees at 10:30, (after meal prep) 42 degrees at 12:30, 41 degrees at 4:00 PM. Placed temp sensor next to room thermometer, and both read same. (Sensor accuracy verified)
June 14, 2018 Windy conditions. Altitude 7,500 feet. Outside temp 76 degrees. Reefer temperature at 8:30 PM was 38 degrees. Temp setting "9" (Max) Wind calm.
June 15, 2018
Reefer temp this morning was 28 degrees - outside temp was 54 degrees. Temp seting reduced to "7". Now at 12:30 PM, outside temp is 76 degrees, reefer temp is 33 degrees.
Opinions solicited, please. Electronic control problem, cooling problem, normal condition?
Facts: Norcold Model NB22 (15 years old)
April 12, 2018 noted reefer temp 48 degrees, outside temp 80 degrees, windy conditions, temp setting increased from "7" to "9" (max). Operation changed from elec to gas, no change.
April 13, 2018 Early morning reefer temp 31 degrees, temp setting turned down to "7" Mode changed to Elec. No wind
Apr 14, 2018 Reefer temp at 4:30 AM 36 degrees at a #7 temp setting. Clnsidered this to be normal operation.
Next outing, May 10, 2018
Reefer turned on at 4:00 PM yesterday, OAT = 100 degrees. Reefer temp 36 degrees at 4:00 AM this morning. During travel to campground (gas operation) the reefer temp continued to climb. At 63 degrees in the box, a fan was placed in the back of the reefer compartment. Temp slowly began to decline. At 9:00 PM reefer temp was 50 degrees, was a windy day.
May 11, 2018 Reefer temp at 5:00 AM was 40 degrees, 39 degrees at 7:00 AM, 42 degrees at 10:30, (after meal prep) 42 degrees at 12:30, 41 degrees at 4:00 PM. Placed temp sensor next to room thermometer, and both read same. (Sensor accuracy verified)
June 14, 2018 Windy conditions. Altitude 7,500 feet. Outside temp 76 degrees. Reefer temperature at 8:30 PM was 38 degrees. Temp setting "9" (Max) Wind calm.
June 15, 2018
Reefer temp this morning was 28 degrees - outside temp was 54 degrees. Temp seting reduced to "7". Now at 12:30 PM, outside temp is 76 degrees, reefer temp is 33 degrees.
